The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae)
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Botanica Brasilica |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100068 |
Resumo: | ABSTRACT The center of diversity for Passiflora subg. Astrophea is in low altitude areas of northern South America. The majority of species of this group are difficult to find in nature. Seed morphology was described in detail for 25 species of Passiflora subgenus Astrophea, a subgenus that until now did not exist. For morphological analysis, 20 seeds per species were measured for length, width and thickness, and the arithmetic means calculated. The seeds varied in length, width and thickness. Eight types of ornamentation were found. The margins varied among crestate, dentate, parted, entire and parted-crestate. The seed apex can be distinguished by the shape and position of the apical appendage. Seed shape varied among obovate, lanceolate, cordiform, and oblong to elliptical. An identification key was developed and a PCA was performed both using the principal morphological characters. Morphological characters of seeds are a new source of data for delimiting taxa with quite conflicting morphological boundaries, such as seen here with the Passiflora subgenus Astrophea. Furthermore, seed morphology is especially useful for the identification of specimens with only fruits and, consequently, seeds available. |
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The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae)Astropheafruitsmorphological charactersseedssystematicsABSTRACT The center of diversity for Passiflora subg. Astrophea is in low altitude areas of northern South America. The majority of species of this group are difficult to find in nature. Seed morphology was described in detail for 25 species of Passiflora subgenus Astrophea, a subgenus that until now did not exist. For morphological analysis, 20 seeds per species were measured for length, width and thickness, and the arithmetic means calculated. The seeds varied in length, width and thickness. Eight types of ornamentation were found. The margins varied among crestate, dentate, parted, entire and parted-crestate. The seed apex can be distinguished by the shape and position of the apical appendage. Seed shape varied among obovate, lanceolate, cordiform, and oblong to elliptical. An identification key was developed and a PCA was performed both using the principal morphological characters. Morphological characters of seeds are a new source of data for delimiting taxa with quite conflicting morphological boundaries, such as seen here with the Passiflora subgenus Astrophea. Furthermore, seed morphology is especially useful for the identification of specimens with only fruits and, consequently, seeds available.Sociedade Botânica do Brasil2017-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100068Acta Botanica Brasilica v.31 n.1 2017reponame:Acta Botanica Brasilicainstname:Sociedade Botânica do Brasil (SBB)instacron:SBB10.1590/0102-33062016abb0414info:eu-repo/semantics/openAccessMezzonato-Pires,Ana CarolinaMendonça,Cláudia Barbieri FerreiraMilward-De-Azevedo,Michaele AlvimGonçalves-Esteves,Vaniaeng2017-03-22T00:00:00Zoai:scielo:S0102-33062017000100068Revistahttps://www.scielo.br/j/abb/ONGhttps://old.scielo.br/oai/scielo-oai.phpacta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com1677-941X0102-3306opendoar:2017-03-22T00:00Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)false |
dc.title.none.fl_str_mv |
The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae) |
title |
The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae) |
spellingShingle |
The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae) Mezzonato-Pires,Ana Carolina Astrophea fruits morphological characters seeds systematics |
title_short |
The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae) |
title_full |
The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae) |
title_fullStr |
The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae) |
title_full_unstemmed |
The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae) |
title_sort |
The taxonomic significance of seed morphology in the Passiflora subgenus Astrophea (Passifloraceae) |
author |
Mezzonato-Pires,Ana Carolina |
author_facet |
Mezzonato-Pires,Ana Carolina Mendonça,Cláudia Barbieri Ferreira Milward-De-Azevedo,Michaele Alvim Gonçalves-Esteves,Vania |
author_role |
author |
author2 |
Mendonça,Cláudia Barbieri Ferreira Milward-De-Azevedo,Michaele Alvim Gonçalves-Esteves,Vania |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Mezzonato-Pires,Ana Carolina Mendonça,Cláudia Barbieri Ferreira Milward-De-Azevedo,Michaele Alvim Gonçalves-Esteves,Vania |
dc.subject.por.fl_str_mv |
Astrophea fruits morphological characters seeds systematics |
topic |
Astrophea fruits morphological characters seeds systematics |
description |
ABSTRACT The center of diversity for Passiflora subg. Astrophea is in low altitude areas of northern South America. The majority of species of this group are difficult to find in nature. Seed morphology was described in detail for 25 species of Passiflora subgenus Astrophea, a subgenus that until now did not exist. For morphological analysis, 20 seeds per species were measured for length, width and thickness, and the arithmetic means calculated. The seeds varied in length, width and thickness. Eight types of ornamentation were found. The margins varied among crestate, dentate, parted, entire and parted-crestate. The seed apex can be distinguished by the shape and position of the apical appendage. Seed shape varied among obovate, lanceolate, cordiform, and oblong to elliptical. An identification key was developed and a PCA was performed both using the principal morphological characters. Morphological characters of seeds are a new source of data for delimiting taxa with quite conflicting morphological boundaries, such as seen here with the Passiflora subgenus Astrophea. Furthermore, seed morphology is especially useful for the identification of specimens with only fruits and, consequently, seeds available. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100068 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100068 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0102-33062016abb0414 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Botânica do Brasil |
publisher.none.fl_str_mv |
Sociedade Botânica do Brasil |
dc.source.none.fl_str_mv |
Acta Botanica Brasilica v.31 n.1 2017 reponame:Acta Botanica Brasilica instname:Sociedade Botânica do Brasil (SBB) instacron:SBB |
instname_str |
Sociedade Botânica do Brasil (SBB) |
instacron_str |
SBB |
institution |
SBB |
reponame_str |
Acta Botanica Brasilica |
collection |
Acta Botanica Brasilica |
repository.name.fl_str_mv |
Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB) |
repository.mail.fl_str_mv |
acta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com |
_version_ |
1752126662489669632 |